[Bug rtl-optimization/106568] -freorder-blocks-algorithm appears to causes a crash in stable code, no way to disable it

[noloader at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106568

--- Comment #14 from Jeffrey Walton <noloader at gmail dot com> ---
(In reply to Jeffrey Walton from comment #13)
> (In reply to Andrew Pinski from comment #12)
> > Can you try -fno-reorder-blocks-and-partition adding to the options?
> > This would not be the first time this option caused issues with EH.
> 
> No joy with -fno-reorder-blocks-and-partition . We still saw the crash with
> CXXFLAGS="-DNDEBUG -g2 -O3 -fno-reorder-blocks-and-partition".

I did notice that using -fno-reorder-functions results in "terminate called
without an active exception". That's unusual because we have exception handlers
in place.

$ ./cryptest.exe vv 51
Using seed: 1660007252

ECGDSA validation suite running...

passed    brainpoolP192r1 using SHA-1
passed    signature key validation
passed    signature and verification
passed    checking invalid signature
passed    brainpoolP320r1 using SHA-224
passed    signature key validation
passed    signature and verification
passed    checking invalid signature
passed    brainpoolP320r1 using SHA-256
passed    signature key validation
passed    signature and verification
passed    checking invalid signature
passed    brainpoolP512r1 using SHA-384
passed    signature key validation
passed    signature and verification
passed    checking invalid signature
passed    brainpoolP512r1 using SHA-512
passed    signature key validation
passed    signature and verification
passed    checking invalid signature
terminate called without an active exception
Aborted (core dumped)